POWER TRANSMISSION DEVICE - A power transmission device is capable of switching the rotation direction of a drive shaft between positive rotation and negative rotation as power is transmitted to the drive shaft from a drive source via the power transmission device. To cause positive rotation of the drive shaft, only the positive rotation belt is tensed by the belt switching means, and rotation from the positive rotation drive pulley is transmitted to the drive shaft via the positive rotation shaft. To cause negative rotation of the drive shaft, only the negative rotation belt is tensed by the belt switching means, and rotation from the negative rotation drive pulley is transmitted to the drive shaft via the negative rotation shaft.

11-26-2009

20160024991

REVERSIBLE MECHANICAL FAN - A fan assembly may include an input shaft, first and second belts, first and second pulleys engaged by the first belt, third and fourth pulleys engaged by the second belt, output shaft rotationally coupled to a fan, and a clutch assembly. The second pulley may be rotationally coupled to the first pulley via the first belt so as to rotate in the same direction as the first pulley. The fourth pulley may be rotationally coupled to the third pulley via the second belt so as to rotate in the opposite direction of the third pulley. The clutch assembly may be configured to selectively rotationally couple the output shaft to the input shaft via the first pulley, first belt, and second pulley. The clutch assembly may also be configured to selectively rotationally couple the output shaft to the input shaft via the third pulley, second belt, and fourth pulley.

01-28-2016

20160089969

Power Transmission Apparatus for Hybrid Electric Vehicle - A transmission for a vehicle may include a first input shaft selectively connected to an engine through a first clutch, a second hollow input shaft disposed in a front side portion of the first input shaft and selectively connected to the engine through a second clutch, a continuously variable transmission mechanism (CV) that continuously shifts and outputs rotation power transferred from the first input shaft, a shift output mechanism that receives rotation power transferred from driving gears on the second input shaft and the CV through driven gears connected to an external gear and selectively shifts and outputs the rotation power, a reverse idle mechanism that transfers the rotation power of the first input shaft to the shift output mechanism in a reverse direction, and a final reduction mechanism that reduces the rotation power output from the shift output mechanism.

03-31-2016

20150133246

DRIVING DEVICE AND WORK MACHINE DEVICE - A drive device having a main drive device, a gearing, a switchable clutch, at least one hydraulic pump, and a gearing output shaft is started with low wear by providing an auxiliary drive to drive the gearing output shaft independently of the main drive device. A work machine device includes the drive device and a work machine which can be started accordingly in a low-wear manner and which enables longer-term operation in the reverse direction of rotation. Corresponding methods which are also provided in connection with the drive device and the work machine device, enable low-wear starting and the elimination of undesired operating states.

05-14-2015

20150087452

POWER TRANSMISSION UNIT FOR VEHICLE - A power transmission unit for a vehicle is provided. In the power transmission unit, a continuously variable transmission to alter a speed ratio continuously is disposed between an input shaft to which a torque of a prime mover is inputted and an output shaft rotated by the torque transmitted from the input shaft. A first gear train that transmits the torque to propel the vehicle in the forward direction is arranged parallel to a second gear train that transmits the torque to propelling the vehicle backwardly. The power transmission unit is comprised of: a first clutch device that selectively allows a torque transmitting route from the input shaft to the output shaft via the first gear train to transmit the torque therethrough; a dog clutch that switches the torque transmitting route from the input shaft to the output shaft between a continuously variable speed change route in which the torque is transmitted through the continuously variable transmission and a reverse route in which the torque is transmitted through the second gear train; and a second clutch device that connects and disconnects both of the continuously variable speed change route and the reverse route to/from at least any one of the input shaft and the output shaft.

03-26-2015

474064000

PLURAL TURNS OF SAME BELT ABOUT PULLEY AXIS

3

20120316017

ORIENTATION SYSTEM AND METHOD - A system and a method for orientation of a ring by rotation, including a cable engaging the ring which rotates about a ring axis, a motor assembly providing a first rotation reduction, and a stretcher for stretching the cable. The system has at least one proximal pulley and at least one distal pulley rotating about a pulley axis each pulley having grooves configured for receiving the cable therein. The ring is rotated by the motor assembly and the pulley assembly is configured to provide a second reduction of rotation to the ring relative to motor rotation, whereby the ring is driven via at least a double reduction of rotation relative to rotation of the motor, and the cable, the plurality of pulleys, and the ring provide a one-way mechanism.

12-13-2012

20110124449

DECELERATION MECHANISM AND TRANSMISSION DEVICE UTILIZED THEREBY - A deceleration mechanism comprises a base, a transmission device rotatably connected to the base, and a driving device fixed to the base. The transmission device includes a driving assembly having a driving wheel and a driven assembly having a driven wheel. Diameter of the driven wheel is greater than that of the driving wheel. The driving device provides power to rotate the driving wheel. The transmission device further includes a transmission member wound on the driving wheel and the driven wheel. The transmission member winds on the driving wheel at least one winding, then criss-crosses and winds on the driven wheel.

05-26-2011

20130090194

REDUCING DEVICE HAVING A HIGH REDUCTION RATIO, ROBOT AND HAPTIC INTERFACE COMPRISING AT LEAST ONE SUCH REDUCING DEVICE - A reducing device having a cable or a belt and cable, providing a high reduction ratio, and including: two driving drums; two sheave wheels; at least one driving cable traveling from a first driving drum to one sheave wheel, from the one sheave wheel to the second driving drum, from the second driving drum to the other sheave wheel, and from the other sheave wheel to the first driving drum; a driven cable, including one strand which travels from a fork of the one sheave wheel to a driven wheel, and one strand which travels from the driven wheel to a fork of the other sheave wheel. The driving drums have different diameters and/or different rotation speeds so rotation thereof causes movement of the sheave wheels driving the driven cable, and rotation movement of the driven wheel. The reducing device is applicable, for example, to robots and haptic interfaces.

04-11-2013

474201000

BELT HAVING DRIVE SURFACES ON OPPOSITE SIDE EDGES OF STACKED PLATES HAVING PLANAR FACES PERPENDICULAR TO DIRECTION OF BELT MOVEMENT

Drive Belt for a Transmission With Convex Pulley Sheaves - A drive belt for continuously variable transmission for motor vehicles is provided with two pulleys, each including two substantially conical pulley sheaves, between which the drive belt can be held at a variable radial position, which drive belt is provided with transverse elements (

11-06-2008

20080254927

Power Transmission Chain and Power Transmission Device Using the Same - A power transmission chain used in a power transmission device of the present invention includes: a plurality of link plates having through holes; and a plurality of pin members that are inserted through said through holes and connect said plurality of link plates to one another. An amount of skew in a chain width direction per chain length of 200 mm is 1 to 2 mm in the power transmission chain. Thus, even if misalignment occurs in the power transmission chain, occurrence of abnormal wear and reduction in transmission efficiency can be effectively prevented.

10-16-2008

474058000

POWER OUTPUT PULLEY SELECTIVELY SHIFTABLE TO DIFFERENT POWER OUTPUT LOCATIONS RELATIVE TO INPUT PULLEY

2

20140335982

DRIVE TRANSMISSION GROUP TO A STEER WHEEL OF A VEHICLE - A drive transmission group to a steer wheel of a vehicle at least a drive chain ring associable to actuating means in rotation able to impart a rotary motion to the chain ring, at least a driven chain ring solidly associated in rotation coaxially to the steer wheel, at least a first intermediate chain ring and a second intermediate chain ring connected respectively to the drive chain ring and to the driven chain ring by means of respective flexible organs, a universal joint comprising a joint spider on a first arm of which the first intermediate chain ring is associated, rotatably with respect to an axis of the first arm, and on a second arm of which the second intermediate chain ring is associated, rotatably with respect to an axis of the second arm, wherein the first intermediate chain ring is concentric to the spider.

11-13-2014

20130244820

[[Multi-Ply]] Strap guide system and methods thereof for robotic surgical arms Drive Trains for Robotic Arms - In one embodiment of the invention, a robotic arm is provided including a linkage assembly and a strap drive train. The linkage assembly includes first, second, third, and fourth links pivotally coupled in series together at first, second, and third joints to define a parallelogram with an insertion axis. The strap drive train includes first and second sets of straps coupled to the linkage assembly. As the linkage assembly is moved about a pitch axis, the first set of straps ensures the third link maintains the same angle relative to the first link, and the first and second set of straps ensures the fourth link maintains the same angle relative to the second link.

09-19-2013

474061000

POWER INPUT AND OUTPUT PULLEYS ON NONPARALLEL AXES

2

20100210383

ACTUATOR - This invention relates to an actuator and has particular reference to linear and rotary actuators, particularly those for use in the control of robotic arms. The invention provides a relatively low cost means of achieving substantially backlashfree rotary and/or linear motion. There is provided an actuator (

MAGNETIC BICYCLE CHAIN RETENTION MECHANISM - An apparatus for driving a drive chain, such as on a bicycle, may include a chainring having teeth arranged around a circumference of the chainring, and one or more magnetic portions disposed adjacent to the teeth of the chainring. The one or more magnetic portions may be disposed on the chainring and/or on a frame to which the chainring is rotatably coupled.